I used to take it also when weight lifting.
I found it def give me a boost & help recovery. I NEVER felt sore (made me think i wasn't working hard enough lol)

Although, whether it was due to other reasons, I found I couldn't sleep well at night. Like I had LOADS of energy or something.

Another concern I had was: Yes, it supplies more energy systems to the muscles, but your heart is also a muscle. Could it push you over the top?

I often debated this with guys from my college class. The main argument was that the muscles you use to move are Skeletal muscles and your heart is a cardiac muscle and does not fatigue. (unlike the biceps when completing reps etc...)

I think it's best just to do lots of research before you start taking it, and if you do decide to use it, def look out for benefits!